Skip the auto shop - Our mechanics make house calls

Q: My car idles rough when at a stop and almost stalls why might this be?

asked by on

I already changed the fuel filter mad sensor was the only other code that was shown I just need to know what to look into replacing next

My car has 57892 miles.
My car has an automatic transmission.

Hello. Typically, if this vehicle runs fine at all other times and will have trouble idling when coming to a stop, it is almost always caused by a bad idle control valve. Most of the time the valve fails making it impossible for the computer to adjust the idle to the correct level. I usually start by cleaning out the throttle body and if that does not help I replace the idle control valve. If you are going to get this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your rough idling issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. My car idles rough when at a stop and almost stalls why might this be?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 06 dts 110k new plugs and packs started idle shuttle hesitant at first then stops bought car used i believe fuel filter is origina

Hello, thanks for writing in about your Cadillac DTS. The fuel filter and fuel pump may be the cause of this issue. You should have the fuel pressure tested first to see if the fuel pump is failing. Replace the...

Q: Can i cut the cat off a run straight pipe without any problems

It is not legal to do so unless your vehicle is for off-road use only. There should not be any issues with back pressure. Here's a little tip, if you put in a small glass pack, or a similar muffler,...

Q: Low oil pressure noise some noise front of the engine 2001 Mercury Grand Marquis

Hello - yes, low oil pressure and high miles can certainly product a metallic clattering from the timing chain set, as well as knocking noises from worn connecting rod bearings and crankshaft main bearings. If you are getting low oil...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...